Also there are two different styles of nuts. One has a split section o the end. The other looks more like a standard flange nut that has been squished to be a lock nut. You want the one with the split section on the tail.

All the ones I can find for sale look like this:


Except for the ones that come with a super-bling stud and nut kit from 22RE performance. I don't want to pay super-bling prices and 22RE performance shipping rates just to get 8 nuts... That would end up like $70, or nearly $9/nut!